Rocky Calibration My Rocky Doseless isn't grinding fine enough for espresso. I've tried everything. I've even tried the teflon tape modification around the upper burr carrier. Still, nothing. I can only get a 15 second pull on the finest setting. I'm about ready to throw Rocky out the window! I've contemplated buying a new set of burrs, but I'm not sure if that would be the answer to my problem. Just so you know, I am using Starbuck's Sumatra blend right now. I ordered a fresh batch of espresso Forte' from Peet's coffee, which should be here by the end of the week. Also note that I am breaking up the clumps of espresso when distributing the coffee in the portafilter. I also apply a 30 pound tamp and a twist to finish it off. Any help is greatly appreciated!

if upper burr holder and the body of grinder does not hold stabile, teflon aplying does not help too much, it is only temporary solution. new upper bur holder would do better.

before inserting upper burr holder you should check if lower burr is rotating syncronized, you should take a bit chalk and sof touch while burr rotates. after that you stop grinder and look do you have circle with same thiknes, that would give you idea where is the problem, if it is in lower burr.

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The Rancilio Rocky coffee grinder is a superb, highly recommended machine, but its doser is pretty useless in the home. First reason: you want to grind coffee instants before you brew or pull your espresso shot; otherwise, the grinds just lose aromatics and flavor. The doser only works for multiple doses, so you're better off just grinding the amount you need each time. If you're buying a Rocky, get the doserless model.

If you have the doser model, like I do, you also find that the vanes which sweep the coffee into your portafilter or cone leave a layer of grounds on the doser floor. If not cleaned out, they turn rancid. There are coffee web sites with fairly complicated instructions on how to modify the vanes to do a clean sweep. Here's the simple way:

Flip up the doser cover, and spin the vanes while pressing your finger lightly on the outer top edge of one vane. The vanes have enough play so the pressure brings one into light contact with the doser floor, sweeping 99% of the grounds into your waiting portafilter.

Hi
There could be a piece broken around the chute where it comes out of the grinder and enters the grounds chamber. There is a rectangular opening in the plastic that can get broken causing the grounds to enter the machine.

HI There are 2 things that can cause this. Either the burrs are bad and need replacing or you grinder is out of adjustment and you need to turn to a finer grind. If you have taken it apart, you are not adjusted close enough so your burrs can't grind fine enough. Readjust the burrs closer together.

to get starting point you adjust burrs to touch each other. when they touch each other you have finest grinding, after you hear metal voice you turn back 3 dots and grind only for 1 dose. you check it, if it goes to slow, you go one more back and clean gruinder, THAN you grind 1 dose more. 2 or 3 times and you will get perfect grinding.

I have a Zass and sometimes have a problem with it self adjusting, but when I do need to adjust it, I find that I have give it a good tap on the top to make sure it adjusts. So, just turn the knob counter clockwise as far as it will go, then give it a good knock on the top and bottom and try again. My mill offers the full grinding range, from a fine powder to large chunks.

the grinding itself makes noise. if you have noise in empty spinning than you should consider changing bearings( 2 of them) in the motor.during opening grinder pay attention to lower holder of burr which spins together with axis, try to be gentle with that part.

because it didn't work a wilde the upper burr holder could be jammed, carefully take id off, clean it good and then put it back until you touch lower burr with the upper.

to get starting point you adjust burrs to touch each other. when they
touch each other you have finest grinding, after you hear metal voice
you turn back 3 dots and grind only for 1 dose. you check it, if it
goes to slow, you go one more back and clean grinder, THAN you grind 1
dose more. 2 or 3 times and you will get perfect grinding.

After taking the top burr off several times and rescrewing it, I finally was able to exert enough force to get it to turn a couple of extra turns. Evidently there was some oil or coffee gunk (although I could see none) that snagged the bur. Now it appears to work as before.

This is a great, service by the way. Even the process of thinking through the problem so I could post it helped me solve it.